Abstract
Numerical calculations using the finite element method are reported for the pressure hole problem caused by flow between two flat plates interrupted by a slit. Predicted are the effects of flow rate and geometry for viscoelastic fluids modeling solutions of polystyrene in dioctylphthalate. Model results are compared to experimental data from the literature for corotational and codeformational differential models having one time constant, when the models are adjusted empirically to give exact shear stress and first normal stress differences in viscometric flows.
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